Docstoc

DC_EC_Series

Document Sample
DC_EC_Series Powered By Docstoc
					DC-EC Series - General purpose DC LVDT

                                                                       High level ±10VDC output
                                                                       Stroke ranges from ±0.05 to ±10in
                                                                       0.25% linearity
                                                                       Reverse polarity protection
                                                                       Double magnetic shielding
                                                                       Stainless steel housing
                                                                       Imperial or metric threaded core



DESCRIPTION

The DC-EC Series of DC operated LVDTs combine a computer-designed AC LVDT with custom integral signal
conditioning to achieve premium performance. Operating on a nominal ±15VDC supply, the DC-EC Series
delivers an extremely linear, low noise, yet high frequency response ±10VDC output.

Innovative design and manufacturing techniques further enhance the DC-EC performance and cost efficiency.
The micro-miniature components employed were meticulously selected for maximum stability and thermal
performance. Vacuum encapsulation of all elements affords excellent shock and vibration tolerance, while
double magnetic shielding provides the utmost protection from stray electrical fields.

Available in a variety of stroke ranges from ±0.05 to ±10 inches, the DC-EC Series can be configured with a
number of standard options including metric threaded core, guided core and small diameter/low mass core.

Captive core option: The DC-EC features an optional captive core design (available for most models) that
greatly simplifies installation. The core rod and bearing assembly includes a Bronze bearing on the front end for
self-alignment, while a Teflon sleeve allows low-friction travel through the stainless steel boreliner (spool tube).
The core rod and the bearing assembly are both field serviceable.

Measurement Specialties, Inc. (NASDAQ MEAS) offers many other types of sensors and signal conditioners.
Data sheets can be downloaded from our web site at: http://www.meas-spec.com/datasheets.aspx
                                                          ®
MEAS acquired Schaevitz Sensors and the Schaevitz trademark in 2000.



FEATURES                                                      APPLICATIONS

      Bi-polar DC operation                                      Materials testing
      Shock and vibration tolerant                               Z-axis position feedback for punch-presses
      Captive core option (available on select models)           Microscope X-Y stage position control
      AISI 400 Series stainless steel housing                    Medical imaging
      CE compliant                                               Automotive suspension testing
      Calibration certificate supplied with each unit            Flight simulators




DC-EC Series Rev. 2                                 www.meas-spec.com                                  2011-november
                                                          1/5
DC-EC Series - General purpose DC LVDT


PERFORMANCE SPECIFICATIONS


                                               ELECTRICAL SPECIFICATIONS
 Parameter               050 DC-EC 125 DC-EC   250 DC-EC    500 DC-EC   1000 DC-EC 2000 DC-EC 3000 DC-EC   5000 DC-EC   10000 DC-EC

                          ±0.050    ±0.125       ±0.25         ±0.5        ±1         ±2         ±3           ±5            ±10
 Stroke range             [±1.27]   [±3.17]     [±6.35]      [±12.7]     [±25.4]    [±50.8]    [±76.2]      [±127]        [±254]
 Sensitivity (VDC/in)       200       80          40            20         10          5         3.3          2.0           1.0
 Sensitivity (VDC/mm)        8        3.2         1.6          0.8         0.4        0.2       0.13         0.08          0.04
 Frequency response
 (Hz) @-3dB                500      500        500            200         200         200        200          200          200
 Input voltage           ±15VDC
 Input current           ±25mA
 Output at stroke ends   ±10VDC
 Linearity               ±0.25% of Full Scale, maximum
 Output ripple           25mVDC, maximum
 Stability               0.125% of Full Scale
 Output impedance        1 Ohm



                                ENVIRONMENTAL SPECIFICATIONS & MATERIALS
 Operating temperature        +32°F to +160°F [0°C to 70°C]
 Survival temperature         -65°F to +200°F [-55°C to 95°C]
 Shock survival               250 g (11ms half-sine)
 Vibration tolerance          10 g up to 2KHz
 Housing material             AISI 400 Series stainless steel
                              4 conductor, 28AWG, stranded copper, with braided shield and polyurethane jacket,
 Cable                        39 inches [1 meter] long

Notes:
All values are nominal unless otherwise noted
Dimensions are in inch [mm] unless otherwise noted
FS: Full Scale is 2X for ±X stroke




DC-EC Series Rev. 2                                       www.meas-spec.com                                          2011-november
                                                                2/5
DC-EC Series - General purpose DC LVDT


MECHANICAL SPECIFICATIONS, NON-CAPTIVE CORE (STANDARD)


                        050 DC-EC   125 DC-EC   250 DC-EC   500 DC-EC 1000 DC-EC   2000 DC-EC   3000 DC-EC   5000 DC-EC 10000 DC-EC

   Main body length       2.10        2.93        3.80         5.49       7.75      11.12         16.32        20.15       35.38
          “A”            [53.3]      [74.4]      [96.5]      [139.4]    [196.9]     [282.4]      [414.5]      [511.8]     [898.7]
     Core length          0.75        1.25        2.00         3.00       3.80       5.30          6.20         6.20       12.00
         “B”             [19.1]      [31.8]      [50.8]       [76.2]     [96.5]     [134.6]      [157.5]      [157.5]     [304.8]
  Core center at null     0.50        0.93        1.35         2.20       3.18        5.3          7.55         9.53       16.58
         “P”             [12.7]      [23.6]      [34.3]       [55.9]     [80.8]     [134.6]      [191.8]      [242.1]     [421.1]
  Body weight      oz     2.19        2.44        2.58         2.93       4.24       5.47          9.39        11.47       15.71
                 [gm]     [62]        [69]        [73]         [83]       [120]      [155]        [266]        [325]       [445]
  Core weight      oz     0.07        0.11        0.18         0.28       0.35       0.46          0.49         0.60        0.85
                 [gm]      [2]         [3]         [5]          [8]        [10]       [13]         [14]         [17]        [24]




                                                 Dimensions are in inches (mm)




DC-EC Series Rev. 2                                       www.meas-spec.com                                         2011-november
                                                                3/5
DC-EC Series - General purpose DC LVDT


MECHANICAL SPECIFICATIONS WITH CAPTIVE CORE OPTION


                                     050 DC-EC     125 DC-EC   250 DC-EC   500 DC-EC   1000 DC-EC   2000 DC-EC     3000 DC-EC

       Main body length                3.85           4.70        5.54        7.23        9.21        12.59           17.95
               “A”                    [97.8]        [119.4]     [140.7]     [183.6]     [233.9]      [319.8]         [455.9]
    Core rod position at null          3.69           4.28        4.75        6.04        7.90        10.52           15.27
               “R”                    [93.7]        [108.7]    [120.7]      [153.4]     [200.7]      [267.2]         [387.9]
   Center of core position at null     0.85           1.27        1.69        2.54        3.53         5.22            7.90
                “P”                   [21.6]         [32.3]      [42.9]      [64.5]      [89.7]      [132.6]         [200.7]




                                                 Dimensions are in inches (mm)




WIRING SCHEMATIC




DC-EC Series Rev. 2                                    www.meas-spec.com                                         2011-november
                                                             4/5
DC-EC Series - General purpose DC LVDT


ORDERING INFORMATION

 Description                 Model            Part Number                   Description               Model            Part Number
 ±0.050 inch LVDT          DC-EC 050          02560981-000                  ±2 inch LVDT           DC-EC 2000          02560986-000
 ±0.125 inch LVDT          DC-EC 125          02560982-000                  ±3 inch LVDT           DC-EC 3000          02560987-000
 ±0.25 inch LVDT           DC-EC 250          02560983-000                  ±5 inch LVDT           DC-EC 5000          02560988-000
 ±0.5 inch LVDT            DC-EC 500          02560984-000                  ±10 inch LVDT          DC-EC 10000         02560989-000
 ±1 inch LVDT              DC-EC 1000         02560985-000
                                                        OPTIONS
 Metric threaded core (M3 x 0.5-6H)                                                           ALL                      XXXXXXXX-006
 Guided core                                                                                  ALL                      XXXXXXXX-010
 Small-diameter/low-mass core (consult factory for mass & dimensions)                         ALL                      XXXXXXXX-020
 Captive core                                                                        DC-EC 050 thru 3000 only          XXXXXXXX-200
Note:
Add multiple option dash numbers together to determine proper ordering suffix
 Example: DC-EC 1000, ±1 inch, with metric threaded and guided core, P/N 02560985-016

                                                     ACCESSORIES
 Core connecting rod, 6 inches long, 4-40 threads                                                                      05282946-006
 Core connecting rod, 12 inches long, 4-40 threads                                                                     05282946-012
 Core connecting rod, 24 inches long, 4-40 threads                                                                     05282946-024
 Core connecting rod, 36 inches long, 4-40 threads                                                                     05282946-036
 Core connecting rod, 6 inches long, M3x0.5 metric threads                                                             05282977-006
 Core connecting rod, 12 inches long, M3x0.5 metric threads                                                            05282977-012
 Mounting block                                                                                                        04560950-000
Note:
Refer to our “ Accessories for LVDT’s” brochure for our LVDT signal conditioning instrumentation and other accessories


TECHNICAL CONTACT INFORMATION

         NORTH AMERICA                                      EUROPE                                               ASIA

  Measurement Specialties, Inc.                 MEAS Deutschland GmbH                        Measurement Specialties China Ltd.
         1000 Lucas Way                                   Hauert 13                               No. 26, Langshan Road
      Hampton, VA 23666                             D-44227 Dortmund                               High-tech Park (North)
          United States                                   Germany                            Nanshan District, Shenzhen 518057
    Phone: +1-800-745-8008                      Phone: +49-(0)231-9740-0                                    China
     Fax: +1-757-766-4297                        Fax: +49-(0)231-9740-20                        Phone: +86-755-33305088
  Email: sales@meas-spec.com                  Email: info.de@meas-spec.com                        Fax: +86-755-33305099
   Web: www.meas-spec.com                      Web: www.meas-spec.com                         Email: info.cn@meas-spec.com
                                                                                                Web: www.meas-spec.com

The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for
inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the
manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement
Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does
Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims
any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different
applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement
Specialties, Inc. does not convey any license under its patent rights nor the rights of others.


DC-EC Series Rev. 2                                          www.meas-spec.com                                               2011-november
                                                                   5/5

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:6
posted:12/10/2011
language:
pages:5